XML得到節點名通過XPATH

Question

我使用XPath有這個XML

<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent> 

，我想每個Children的節點名直到結束：

• child1
• secondhild
• child3
• fourth

像Parent/Children/*[@name] ..沒有，只有主子節點名稱

Answer 1

也許這針對任何屬性：

<?php 
$string = '<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent>'; 

$xml = new SimpleXMLElement($string); 

$children = $xml->xpath('/Parent/Children/*'); 

foreach ($children as $child){ 
    echo $child->getName() . "\n"; 
} 

或

<?php 
$string = '<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent>'; 

$xml = new SimpleXMLElement($string); 

$children = $xml->xpath('/Parent/Children/*'); 
$result = array(); 

foreach ($children as $child){ 
    $result[] = $child->getName(); 
} 

print_r($result); 

Answer 2

試試這個XPATH：

Parent/Children/*/name() 

這將調用結果節點上的name（）函數。